Piotr Esden-Tempski

Embedded Open-Source Hacker? Founder of @1bitsquared⋅Maintainer https://black-magic.org ⋅ https://icebreaker-fpga.org #hardwarehackers #fpga #asic #embedded #risc-v

Public Key

npub1m7xyz3ms00rzrn43j8dyerndxu35nkzfdu9xmp3vsm97jnx3f5tsa6kmu3

NIP-05 Address

esden@chaos-social.mostr.pub

Profile Code

nprofile1qqsdlrzpgac8h33pe6cerkjv3eknwg6fmpyk7zndsckgdjlffng569cpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsz8sqzu

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1m7xyz3ms00rzrn43j8dyerndxu35nkzfdu9xmp3vsm97jnx3f5tsa6kmu3

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Last Notes

2026-04-05 00:44:55 UTC

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@nprofile…mydz Yeah, sorry, not knowing your Mom's world view leanings… I felt like asking. :) Personally I was shocked how reactionary Sarah's take was. She just recited the attack quote collection with barely, if any, vetting what so ever. And that from a person pretends to try, building a way forward, based on data collection? SMH... I guess this is the continuation of all kinds of folks continuing their march to the left? Time will tell. We live in very interesting times.

2026-04-05 00:29:08 UTC

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@nprofile…mydz the question is, because of the Tim take or the Sarah take?

2026-03-31 16:25:08 UTC

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@nprofile…wnnp damn, I guess I am glad I am not the only one having to deal with customers that think they know better because slop machine said so 🫠 my recent story was a customer vibecoding an app, for the device we are making, that hardcoded db creds in the js deployed to the browser 🫠 fun times. They also kept blaming our firmware for bugs in their vibecoded slop 😭

2026-03-29 00:51:35 UTC

A Video impression of the #NoKings 3 march in #Springfield #Oregon It was a nice sunny spring day. The turn around was a good way to see the massive amount of people that joined the protest! #nokings3 #resist #resistence
https://assets.chaos.social/media_attachments/files/116/309/720/477/358/922/original/b62d2c86300b8a8a.mp4

2026-03-28 06:21:30 UTC

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@nprofile…e6js Sorry, I feel a bit responsible for sending you down this rabbit hole. This sounds pretty annoying to decide what to do. :/

2026-03-26 15:14:50 UTC

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@nprofile…tsp5 I used the migration service. https://docs.codeberg.org/advanced/migrating-repos/ it does a pretty good job to include most of the GitHub stuff like issues pull-requests and releases. The only thing to keep in mind is that unmerged pull requests will be detached from the original user. There is some manual stuff you have to do when you continue work with the contributor after the move.

2026-03-25 22:01:34 UTC

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@nprofile…mvm4 Thanks! The more I use your service the more I like it. Not just for the reasons at hand but also for technical reasons. Thank you for being awesome!
Will be moving the rest of my open source projects to your platform. 🙏

2026-03-25 20:57:22 UTC

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@nprofile…hgaf omg you are 26? god I am old ... 😭
And I need to find ways to channel my youthful naiivete more ... maybe I would get some more cool stuff done... 🤷

2026-03-25 20:44:53 UTC

I somehow don't trust them to actually respect this setting. Curious why ;) In my case it won't do very much as I am not using this brain rot stuff anyways. (you shouldn’t either... I am not sure what you are doing if you still use that stuff despite the overwhelming amount of reasons not to…)
In any case, thanks GitHub for reminding me to move more of my projects to codeberg... (FYI: the Black Magic Debug move went really well! You should consider moving too... ;) ) #noai #codeberg #github
https://assets.chaos.social/media_attachments/files/116/291/763/562/058/794/original/5e913337406bf9e9.png

2026-03-23 20:16:50 UTC

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@nprofile…e6js @nprofile…m5ua that is appreciated! In the projects that I am the maintainer of we have explicit no LLM policy. And we moved or are in the process of moving to codeberg to decrease the exposure to the stuff. I should probably spend the time to compile my thoughts around the stuff in some blog post finally…

2026-03-22 17:33:46 UTC

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@nprofile…m5ua In general, it is nice to get a warning like this, but it should be followed up with human check/analysis. We don't want to leave a diagnosis to an automated system and instantly condemn things without double checking. Right?

2026-03-22 17:28:43 UTC

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@nprofile…m5ua I am having trouble finding that claude contribution it seems to be 1 commit, but I can't find that commit in the codebase? FWIW, the maintainers are quite publicly against AI use…

2026-03-19 19:25:22 UTC

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@nprofile…qgx2 I am glad to hear that you are doing ok!

2026-03-19 15:43:46 UTC

Argh, is there a timeline where being paid does not entail ruining your product? I want good open tools to be well funded. Can the ai bubble burst a bit faster please?!

2026-03-08 01:07:13 UTC

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@nprofile…sn0g Thanks 🙏

2026-03-07 21:05:25 UTC

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@nprofile…mvm4 @nprofile…u6vt I am also on your Matrix, it might be easier to follow up on than on mastodon. :)

2026-03-07 21:02:28 UTC

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@nprofile…mvm4 @nprofile…u6vt the project website that worked yesterday is throwing some SSL error. Not exactly sure what is up with that. Page: https://black-magic.org/ source: https://codeberg.org/blackmagic-debug/pages/src/branch/pages

2026-03-07 21:00:05 UTC

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@nprofile…mvm4 Thank you for having us! :) Don't get us wrong, we are happy to be on Codeberg. :)

2026-03-07 20:46:20 UTC

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@nprofile…u6vt @nprofile…mvm4 Ohh I see, it is broken again. It worked yesterday ... O_O

2026-03-07 20:45:54 UTC

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@nprofile…u6vt @nprofile…mvm4 Yeah not sure what is up with that. We do use codeberg.page to host it. I had the error appear before, but it disappeared when I reloaded the page. It is something odd going on with the LetsEncrypt certificates? Not sure.

2026-03-07 19:37:10 UTC

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And yes, there is still a lot more work cleanup to do after the move. A bunch of links are still pointing to the wrong place. We are missing a bunch of the CI jobs, the website is not regenerating right now. Don't worry we will get it all fixed over time. If you want to help with the cleanup get in touch on discord, help is always welcome. :)

2026-03-07 19:34:20 UTC

We did it! We moved Black Magic Debug project to @nprofile…mvm4! 🎉
https://codeberg.org/blackmagic-debug
I wish we did not have to move, but GitHub AI slop and a bunch of other badness pushed us over the edge.
Sorry for all the trouble to anyone who now needs to redirect to the new place, but I feel this is a good thing for the project and it's future.
Thank you #codeberg for all the hard work to offer an alternative! Onwards and upwards! 🚀

2026-02-19 19:14:39 UTC

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@nprofile…thd8 good and correct breakfast is the foundation of a good day… I was being told and despite my opposition they might have actually been right 😅

2026-02-13 05:34:01 UTC

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@nprofile…mlfx That said, every IRC client will work with the server. It will just not render replies as replies, will not show any reactions and make changes to posts using redact functionality. It can be a bit confusing to users but still.

2026-02-13 05:32:57 UTC

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@nprofile…mlfx I could give it a try. But as far as I can see it does not have `+draft/react` and `+draft/reply` support. :(
https://assets.chaos.social/media_attachments/files/116/061/685/266/933/171/original/0e7f88a2ded5c996.png

2026-02-12 22:47:21 UTC

OMG! O_O! Am I the only one finding this extremely exciting? 😳
(this is ergo ircd with IRCCloud client... showing off some IRCv3 features)
https://assets.chaos.social/media_attachments/files/116/060/090/394/558/508/original/3acee020e6d0c4e8.png

2026-02-08 00:12:28 UTC

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Ok, it seems that this is the default formatting that Hetzner uses. They don't talk about it anywhere in their documentation, but they mention that their images contain support for ext2/3/4, reiserfs and xfs. The issue that I ran into here is the fact that the xfs drive, was formatted without CRC enabled, which forces it to be V4 of xfs not V5. And V4 is being deprecated. I am still in the process of making a full clean cold backup of the machine. But I will just try reformatting the drive.

2026-02-05 05:08:32 UTC

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@nprofile…r3qs I never expected to get emotional watching a Technology Connections video. But here we are. And yes, *hugs offered*

2026-02-05 04:11:14 UTC

If you call yourself apolitical and expect others and their youtube content to be apolitical. This is a video for you. Take your time, get a snack, and watch the full F’in video… you might actually learn something for once. https://www.youtube.com/watch?v=KtQ9nt2ZeGM

2026-02-04 17:00:29 UTC

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@nprofile…hvzv @nprofile…mvm4 sure makes sense. I was just gauging if it is already a known problem before bothering the busy maintainers for no reason. I will try to open an issue. 🙏

2026-02-04 16:45:49 UTC

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@nprofile…rlwr yeah that is fair. The main issue is that the first attempt always ends up in a deadlock. :( and yes I tried multiple times deleting the chaff in between attempts

2026-02-04 16:43:20 UTC

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@nprofile…hvzv not that I know off. I can try again today. But unless something fundamental changed I doubt it.

2026-01-24 00:39:07 UTC

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@nprofile…5xpu @nprofile…99w6 🫡 ticket acquired! :)

2026-01-23 16:09:21 UTC

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@nprofile…mvvp I was using and contributing to its predecessor rocklinux. It was my regular daily driver Linux distribution. I am planning to use t2 for an upcoming project instead of yocto/build root and I want to support @nprofile…vmc2 because I value his contributions to the project and Linux kernel.

2026-01-22 21:26:46 UTC

I just sponsored rxrbln. Go sponsor your open source dependencies!
https://github.com/sponsors/rxrbln?sp=1bitsquared

2026-01-17 17:36:26 UTC

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@nprofile…6s7p @nprofile…thd8 What if I get this error on codeberg? :( https://chaos.social/@esden/115911645126022410

2026-01-12 17:49:27 UTC

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@nprofile…hf3e every time I do a bridge I think to myself: “would Greg approve of this” still I have ways to go before I can hope to get a yes response :)

2026-01-09 21:12:09 UTC

When writing a derive proc_macro and need to use it inside the crate that implements the type to be derived. Consider this abomination: `extern crate self as my_crate_name;` inside the crate defining the type. This way you can have an absolute reference to the type in the generated code and it will work inside and outside of your crate in question. I am sure there is a good reason rust does not provide the alias by default, but still i find it a bit funny I have to add this. 🤷

2026-01-07 00:49:47 UTC

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@nprofile…sx8u that is terrible! I am glad you are safe!

2026-01-06 17:09:30 UTC

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@nprofile…gdg9 All true. There are worse solutions for sure. I have a bit of a hate/love relationship with notecards. They are low power, quite reliable, easier to use than raw LTE modems. I tried other solutions in that realm and notecard is hands down the easiest one to use. But some architectural decisions are still quite baffling. :D

2026-01-06 05:51:45 UTC

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On the upside... (I hate that I complain so much…) I really enjoy the Rust part of it all! Being able to use serde, syn, quote and proc_macro2 outside of an actual proc_macro is fantastic! The resulting generator is blazing fast at parsing the JSON, transforming it a few times, and spitting out the resulting code! Writing all the parse and transformation code is so much fun while being guided by rust-analyzer. The longer I spend doing this the harder it will be to go back to something else. :D

2026-01-06 05:43:23 UTC

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Right... don't ask me why Blues decided that JSON is the right “protocol”to talk to their Notecards... (on top of that the default low level transport is i2c which has no back pressure/flow control functionality 😭, the UART alternative does not offer CTS/RTS either) it would not have crossed my mind to use for embedded system comms... 🤷 and I don't think these were web people that came up with that abomination either…

2026-01-06 05:32:01 UTC

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I am a bit curious how standards like JSON Schema come to be. It is barely fit for purpose of validating existing schema. (an empty schema passes all JSON... that should tell you everything) Generating code from it is ill advised but still it will hopefully save me some time. I spend more code validating that the schema I read is consistent enough to infer the correct types of my structs... SMH

2026-01-06 05:27:10 UTC

For my consulting work I often use Blues Notecards. I write all the firmware for those projects in Rust ❤️🦀… but Blues does not provide an official Rust crate for it. There is a crate, but I needed a few more/different things and one thing led to another and now I am rewriting it. Turns out Blues publishes JSON Schema 🤮 for their API, now I am on yak shaving layer 4 because of all this. Still 800 lines of code to generate at least 9000 is a net win? #rust #embedded

2026-01-06 05:19:54 UTC

I like the idea of #dit but is there also an english version of the website https://di.day/? I know I can run it through an autotranslator, but it would be nice to have a proper english version to share with my non German speaking friends.

2025-12-09 23:20:42 UTC

I might be the slow one here, but #algorave rocks! And I am glad I am finally aware of it! :D (also highly recommend Switch Angel streams, very enjoyable jam sessions) https://www.youtube.com/watch?v=hFSwWzxrqUA

2025-12-02 20:09:59 UTC

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@nprofile…k6qq funnily enough I tend to underestimate how much effort it is every time I face bring up of a new project 😅

2025-12-02 20:06:34 UTC

Not the same magnitude but also true for other electronic products. I can confirm :) People underestimate the amount of time that goes into BOM and vendor selection and negotiation of pricing where possible. https://mastodon.social/@mntmn/115651741718808237

2025-11-18 22:12:46 UTC

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@nprofile…5hpv this part is generally frustrating because the body does not provide enough of reflection for the normal vision to see it so I have to redo it >_<

2025-11-18 22:11:12 UTC

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@nprofile…5hpv it is not for PCB layout but for the PnP machine programming. I am under extreme time pressure and having to do all the math is just annoying waste of time

2025-10-22 04:57:14 UTC

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@nprofile…ftff Yeah, I got aware of them when I was implementing an m.2 card carrier. They are very convenient to use and Würth makes a ton of dfferent sizes. I have some alternatives on the way from LCSC, really curious to see how they work out. :D

2025-10-20 02:25:59 UTC

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@nprofile…p8vh Since the march I learned some things. It turns out that these people are called Corkers. The Police only starts blocking, and then it is taken over by volunteers. The police does not even have enough people to do all the route blocking if they wanted to. The following video has some helpful information. https://www.youtube.com/watch?v=yyUVJgGTNIQ

2025-10-20 00:58:00 UTC

Hey everyone! Tune in to Kat Abughazaleh https://www.twitch.tv/katabughazaleh stream either on YT or Twitch. They are trying to prove that streams are better way to spend time of candidates than calling rich people for donations. Let's show their theory is correct! :) Consider donating at https://secure.actblue.com/donate/katstream

2025-10-18 23:46:59 UTC

A Video impression of the #NoKings 2 march in #Eugene #Oregon It was a really pretty autumn day. Lot's of patriotic people came out. I hope you get some good vibes from it as I did. :) #nokings2 #resist #resistence
https://assets.chaos.social/media_attachments/files/115/397/834/494/712/534/original/510d5270fd0cf38e.mp4

2025-10-18 22:26:20 UTC

Some photo impressions from #nokings in #eugene #oregon It was _SIGNIFICANTLY_ bigger than NoKings 1 and way more cars were honking too! #nokings2 #resistance #resist
https://assets.chaos.social/media_attachments/files/115/397/516/643/471/254/original/f0456e1f09026c96.jpeg
https://assets.chaos.social/media_attachments/files/115/397/516/908/175/419/original/517ab107cad946a6.jpeg
https://assets.chaos.social/media_attachments/files/115/397/517/164/470/498/original/98783a2872974712.jpeg
https://assets.chaos.social/media_attachments/files/115/397/517/417/874/457/original/c8f1eee7eed95b6d.jpeg

2025-10-08 00:40:30 UTC

I might be using codeberg (aka. forgejo) more in the future. I am unreasonably excited to see how many merge options it offers, but mainly "fast-forward only" is in there! ❤️ Why can't I have it on GitHub 💔
https://assets.chaos.social/media_attachments/files/115/335/759/543/169/210/original/8c2a49e695904798.png

2025-08-12 15:54:26 UTC

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@nprofile…pqtk @nprofile…fda4 Yes it does, we are in the process of developing open-source PCIe gateware for the ECP5. This is why we are planning to launch the campaign next year so that we can show off working gateware. :)

2025-06-23 04:45:23 UTC

I like having PWM control of status LEDs. It results in much more human feeling feedback. This is just a test of if I hooked things the right way. It needs gamma correction and nice patterns. I am looking forward to adding all of that. :)
https://assets.chaos.social/media_attachments/files/114/730/854/816/991/351/original/d8bcd412e872345f.mp4

2025-06-10 19:57:54 UTC

Oof... completely understandable from the KiCad dev perspective. To be fair, there were other more serious reasons I had to switch back to X11 about a year ago due to Wayland "glitches”. I still would love to see Wayland succeed eventually... maybe the distributions making that hard break will force things to improve? :shrug:
https://fosstodon.org/@kicad/114660789432923276

2025-06-01 22:45:48 UTC

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@nprofile…z7r0 Yeah I was considering that option. But as I am already paying for this colo server I rather not take on extra monthly fees if I can avoid it.

2025-06-01 21:43:24 UTC

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@nprofile…6wva I mean... no no no no bad recommendation. >_< See the dedicated post. They are just throwing fuel on the fire of people not wanting to play with fediverse >_< *grumble* (sorry the whole admin weekend resulted in me having a really horrible mood >_<)

2025-06-01 21:41:33 UTC

I try to be a good member of the fediverse by hosting my company accounts on my own mastodon instance. I already have a dedicated server. So I put it on there using the official docker instructions. For the second time now, updating this thing ended up in a pile of grief. Files not loading, binaries missing, instructions unclear, nginx config wrong. All kind of horrible stuff. Why can't it be as simple as discourse. Discourse is easy to keep updated >_<

2025-06-01 21:34:22 UTC

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@nprofile…6wva yeah, a lot of my stuff is still oldschool bare metal setup. I rarely find the time/motivation to update this stuff, especially when it "just works”... All new services I acquire I try to put into docker containers... but that is also not always as smooth as I wish... looking at you mastodon…

2025-06-01 21:29:52 UTC

I guess I am one of the few holdouts to still host their own email server. Running Debian on a dedicated machine. I have been swamped with life and work for ages now, but I finally decided to bite the bullet and do a system update. And of course, the whole dovecot config format had to change, breaking half of the email setup. This resulted in two days of anxiety filled, admin work. *sigh* ... I know it is good to improve things in software, still I did not like it one bit! :(

2025-02-04 16:25:19 UTC

You should watch this video by Fran Blanche. I know that it is hard to keep paying attention to what is happening right now in the US politics. The culture war, that was imposed onto all of us to distract from real issues, has real consequences for people that are our friends and coworkers. 🏳️‍⚧️🏳️‍🌈💪
https://www.youtube.com/watch?v=XzX0hSW3W4g

2024-12-05 18:03:08 UTC

Look at that quirky balun! LOOK AT IT! They soldered a ferrite onto the back of a blank SMD component! I love it! :D Yes this is an off the shelf product, I did not come up with it! https://www.digikey.com/en/products/detail/pulse-electronics/CX2074NL/2265447 #electronics #hamradio #mchf #rf
https://assets.chaos.social/media_attachments/files/113/601/530/085/012/383/original/71ea94666f778acf.jpeg

2024-11-14 19:14:23 UTC

I got myself a little present.I have not exposed real film in quite a long time. I have never used Olympus cameras, so it will be a trip to the past as well as a new experience. :D Looking forward to resurrecting an old hobby. #photography #gear #vintage
https://assets.chaos.social/media_attachments/files/113/482/901/738/828/634/original/9176a325fcb54475.jpeg

2023-09-23 23:41:39 UTC

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@npub10ae…nlyc Ohh good to know! I do want to make JTAG and SWD opto isolators eventually and offer them as an option. They do exist from the "usual suspects" but are prohibitively expensive.